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Patent Searching and Data


Title:
DEVICE AND METHOD FOR SIZING METALLIC TUBE
Document Type and Number:
Japanese Patent JP2001269705
Kind Code:
A
Abstract:

To solve such a problem that the out-of-roundness of a steel tube is degraded when unfilling that noncontact part with a grooved roll in the stand before the final one is produced in a part of the outside surface of the steel tube at sizing is generated.

This device is a sizing device 10 which is provided with a sizing mill 11 for steel tubes 60 provided with nine stands F1-F9 having three grooved rolls a, b, c, an outside diameter measuring device 41 for measuring the outside diameter d1-d3 of a cross section of the steel tube 60 rolled with the sizing mill 11 and a controller 51 for controlling the screw-down location of at least one grooved roll among the grooved rolls a, b, c which belong respectively to the stands F1-F9 based on informations about the center position of the steel tube 60 which are determined from the measured values d1-d3 of the outside diameter measured with the outside diameter measuring device 41, that is, a center position presenting region in which the center position of the steel tube 60 is present.


Inventors:
Kishi, Masatomo
Okui, Tatsuya
Application Number:
JP2000000086684
Publication Date:
October 02, 2001
Filing Date:
March 27, 2000
Export Citation:
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Assignee:
SUMITOMO METAL IND LTD
International Classes:
G01B11/10; B21B17/14; B21B19/10; B21B31/20; B21B37/00; B21B37/16; B21B37/78; G01B21/12; (IPC1-7): B21B37/16; B21B17/14; B21B19/10; B21B31/20; B21B37/00; B21B37/78; G01B21/12